320 
LITTLEHALES. 
HONGKONG—Continued. 
2 
Year. 
Observed. 
Computed. 
O-C. 
O v -C. 
O 
o 
1791. 
+27.92 
+26.99 
+0.93 
0.8649 
1 
1827. 
+29.97 
+29.89 
+0.08 
0.0064 
1837. 
+30.53 
+ 30.18 
+0.35 
0.1225 
1841.1 .... 
+30.05 
+30.44 
—0.39 
0.1521 
1843. 
+30.05 
+30.58 
—0.53 
0.2809 
1843.8 .... 
+30.83 
+30.59 
+0.24 
0.0625 
1851. 
+29.67 
+30.99 
—1.32 
1.7689 
1858. 
+31.13 
+31.34 
—0.21 
0.0441 
1858.1 .... 
+31.10 
+31.35 
—0.25 
0.0625 
1872.3 .... 
+32.30 
+31.91 
+0.39 
0.1521 
1873.3 .... 
+32.33 
+31.91 
+0.42 
0.1764 
1874.3 .... 
+32.29 
+31.98 
+0.31 
0.0961 
1875. 
+32.34 
+32.00 
+0.34 
0.1156 
Probable error of a single observation = ± 18'. 
1875. 
1875.7 .... 
+32.30 
+32.00 
+0.30 
0.0900 
Period = 400 yeai's. 
+31.95 
+32.02 
—0.07 
0.0049 
1884.5 .... 
+32.45 
+32.23 
+0.22 
0.0484 
1885.5 .... 
+32.44 
+32.26 
+0.18 
0.0324 
1886.5 .... 
+32.43 
+32.27 
+0.16 
0.0256 
1887.5 .... 
+32.37 
+32.29 
+0.08 
0.0064 
1888.5 .... 
+32.35 
+32.31 
+0.04 
0.0016 
1889.5 .... 
+32.28 
+32.32 
—0.04 
0.0016 
1890.2 .... 
+32.17 
+32.34 
—0.17 
0.0289 
1891.3 .... 
+32.40 
+32.35 
+0.05 
0.0025 
1891.8 .... 
+32.08 
+32.35 
—0.27 
0.0729 
1892.5 .... 
+32.05 
+32.36 
—0.31 
0.0961 
1893.5 .... 
+31.95 
+32.37 
—0.42 
0.1764 
1894.5 .... 
+31.88 
+32.38 
—0.50 
0.2500 
4.7427 
Empirical equation for determining the inclination for any year: I = 27°.82 -(- 
3.38 sin 0.9 (< — 1850) + 3.12 cos 0.9 (t — 1850). 
